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BRISTAR was founded in 2014（Former Yongxing Sitong Valve Co.,Ltd��?We professional manufacture pipe fitting,such as flanges ,forged and die-casting elbows,forged socket fittings and so on which used widely in many industries , such as paper making, ship building, petroleum , chemical industry , electric power , natural gas , sewage , construction, pharmaceutical, and dairying.Products in strict accordance with the national standard, German standard, American Standard, Japanese standard, standard production...
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